Graph Parabolas with Vertices at the Origin
Find the Focus $$y ^ { 2 } = - 12 x$$

Multiple Choice

Graph Parabolas with Vertices at the Origin
Find the focus and directrix of the parabola with the given equation.
- $$y ^ { 2 } = - 12 x$$

A) focus: $( - 3,0 )$
directrix: $x = 3$
B) focus: $( 0 , - 3 )$
directrix: $y = 3$
C) focus: $( 3,0 )$
directrix: $x = - 3$
D) focus: $( - 3,0 )$
directrix: $y = 3$